I've got a Neptune on board and one without a door for spares. It will be a while before I could access either to have a look but if you are still looking for answers in the end, let me know.
I only just saw this, but I do still have the problem with the door spring and if you ever got a chance to look at it would appreciate knowing what you found.
This may be the spring
![]()
If so it is part number LPS 285-101 and should be available if required from Norfolk Marine in Wroxham or Spares Marine in Torquay
I would imagine you have to fully open the door and then remove all the screws around the edge, but without an IPB it's a case of suck it and see.
What's an IPB?
Yes, sorry.Illustrated Parts Breakdown ?